Bluetooth device paired but unable to connect w8.1

Hello everyone!

I have an HP Pavilion 17.
After an update, my Bluetooth speaker no longer wants to connect.

When I go to my playback devices, I see my device activated. I right-click and select "connect," but nothing happens... as if I hadn’t clicked at all.


In Settings / Manage Bluetooth devices, it is indeed paired.

In the Troubleshooter utility, I get the following error message even though my speaker is connected and can easily work with my other devices (like my phone, for example).


I have updated my drivers, and it still doesn’t work.
I uninstalled and reinstalled my drivers, still nothing.
I deleted my device and tried again, still no luck.
I turned my computer off and on again, and nothing worked.

I tried to restore my system to before the update, and I got the following error message: "System restore failed in the delayed write phase for the file \??\Volume{700d7c8f-f091-4ae2-915c-bcf2411c19}\Windows\LastGood\system32. (0xc000003a)"
(I’m not sure if this is related, but still...)

Here is the list of my drivers:


So, there it is.
I tried to be as comprehensive as possible, but if any information is missing, I will gladly provide it.

Thank you in advance for the time you will dedicate to my request. I'm truly out of ideas...